Emission and Performance Analysis of Four-Stroke Dual-Cylinder …
323
2 Materials and Method
Pyrolyzed waste plastic oil and combination of soybean and waste cooking oil were
chosen as biodiesel. Waste plastic pyrolysis oil which is better known as plastic
biodiesel is purchased from waste plastic pyrolysis plant set up by Petlad Nagarpalika,
Petlad, Gujarat. The pyrolysis oil was made solely of waste plastics collected from
households in Petlad taluka. Biodiesel produced from soybean and waste cooking
oil which is currently available for retail use in Ahmedabad was chosen along with
the plastic pyrolysis oil for this experiment. Physical and chemical properties such
as kinematic viscosity, flash point, pour point and calorific value were checked and
compared it with natural diesel. Table 1 shows the comparison of fuel properties for
all the three fuels.
The total of five different blends were prepared for the experiment which are B0
(pure diesel), B05 (95% diesel + 5% biodiesel), B10 (90% diesel + 10% biodiesel),
B10 (90% diesel + 10% plastic pyrolysis oil) and B20 (80% diesel + 20% biodiesel).
The most of the chemical and physical characteristics of biodiesel and plastic
pyrolysis oil are similar to diesel. Therefore, they can be seen as possible replacement
of conventional diesel in future. Although acid number for plastic pyrolysis oil is
higher than diesel, it tends to corrode the fuel tank and other components of the
engine. Moreover, sulphur content is also higher. This limits the higher percentage
of blending. Figure 1 shows the different blends of biodiesel which is prepared for
the experiment.
Table 1 Chemical and physical properties of fuel
Properties
Diesel Soy-based biodiesel Plastic pyrolysis oil
Density (KG/m 3 )
888.1
932.5
887.5
Kinematic viscosity @40 C (cSt)
2–4.5
4.2
1.802
Flash point (°C)
>66
>120
>79
Fire point (°C)
>70
>124
>79
Water content (% V/V)
0.02
0.0325
0.05
Pour point (°C)
15
14
21
Calorific value (MJ/kg)
45
41.117
44.406
Total sulphur content (mg/kg)
50
3
161
Carbon residue (%m/m)
0.3
0.02
0.01
Ash from petroleum products (%m/m) 0.01
–
0.016
Acid number (mg KOH/g)
0.2
0.28
5.65
323
2 Materials and Method
Pyrolyzed waste plastic oil and combination of soybean and waste cooking oil were
chosen as biodiesel. Waste plastic pyrolysis oil which is better known as plastic
biodiesel is purchased from waste plastic pyrolysis plant set up by Petlad Nagarpalika,
Petlad, Gujarat. The pyrolysis oil was made solely of waste plastics collected from
households in Petlad taluka. Biodiesel produced from soybean and waste cooking
oil which is currently available for retail use in Ahmedabad was chosen along with
the plastic pyrolysis oil for this experiment. Physical and chemical properties such
as kinematic viscosity, flash point, pour point and calorific value were checked and
compared it with natural diesel. Table 1 shows the comparison of fuel properties for
all the three fuels.
The total of five different blends were prepared for the experiment which are B0
(pure diesel), B05 (95% diesel + 5% biodiesel), B10 (90% diesel + 10% biodiesel),
B10 (90% diesel + 10% plastic pyrolysis oil) and B20 (80% diesel + 20% biodiesel).
The most of the chemical and physical characteristics of biodiesel and plastic
pyrolysis oil are similar to diesel. Therefore, they can be seen as possible replacement
of conventional diesel in future. Although acid number for plastic pyrolysis oil is
higher than diesel, it tends to corrode the fuel tank and other components of the
engine. Moreover, sulphur content is also higher. This limits the higher percentage
of blending. Figure 1 shows the different blends of biodiesel which is prepared for
the experiment.
Table 1 Chemical and physical properties of fuel
Properties
Diesel Soy-based biodiesel Plastic pyrolysis oil
Density (KG/m 3 )
888.1
932.5
887.5
Kinematic viscosity @40 C (cSt)
2–4.5
4.2
1.802
Flash point (°C)
>66
>120
>79
Fire point (°C)
>70
>124
>79
Water content (% V/V)
0.02
0.0325
0.05
Pour point (°C)
15
14
21
Calorific value (MJ/kg)
45
41.117
44.406
Total sulphur content (mg/kg)
50
3
161
Carbon residue (%m/m)
0.3
0.02
0.01
Ash from petroleum products (%m/m) 0.01
–
0.016
Acid number (mg KOH/g)
0.2
0.28
5.65